A couple of weeks ago, I blew a tire in Georgia and it knocked out my hydraulics. I'm guessing it did something to the wiring going to the rear sensor, so I can't use any part of my leveling system. I can however still operate my slides as normal. I was raising my front end to hook up using my drill. I stopped and went inside to pull my living room slides in and they didn't move. I heard the pump working though. When I went outside, my front end was all the way down. I pushed the button the other way and they went back up. When I got to where we were going, I did the same thing. it worked until it got a lot of resistance then the slide started to move. But it sure saved a lot of time on my knees.